Subj : 3 Day Space Weather Forecast To : All From : Sean Dennis Date : Thu Mar 06 2025 00:19:01 :Product: 3-Day Forecast :Issued: 2025 Mar 06 0030 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # A. NOAA Geomagnetic Activity Observation and Forecast The greatest observed 3 hr Kp over the past 24 hours was 4 (below NOAA Scale levels). The greatest expected 3 hr Kp for Mar 06-Mar 08 2025 is 4.00 (below NOAA Scale levels). NOAA Kp index breakdown Mar 06-Mar 08 2025 Mar 06 Mar 07 Mar 08 00-03UT 3.00 1.33 2.00 03-06UT 2.67 1.33 1.67 06-09UT 2.33 1.67 2.00 09-12UT 2.33 1.67 2.33 12-15UT 1.67 1.67 2.33 15-18UT 2.00 1.33 2.67 18-21UT 2.33 1.33 3.00 21-00UT 2.33 1.33 4.00 Rationale: No G1 (Minor) or greater geomagnetic storms are expected. No significant transient or recurrent solar wind features are forecast. B. NOAA Solar Radiation Activity Observation and Forecast Solar radiation, as observed by NOAA GOES-18 over the past 24 hours, was below S-scale storm level thresholds. Solar Radiation Storm Forecast for Mar 06-Mar 08 2025 Mar 06 Mar 07 Mar 08 S1 or greater 5% 5% 5% Rationale: No S1 (Minor) or greater solar radiation storms are expected. No significant active region activity favorable for radiation storm production is forecast. C. NOAA Radio Blackout Activity and Forecast Radio blackouts reaching the R1 levels were observed over the past 24 hours. The largest was at Mar 05 2025 1150 UTC. Radio Blackout Forecast for Mar 06-Mar 08 2025 Mar 06 Mar 07 Mar 08 R1-R2 45% 45% 45% R3 or greater 10% 10% 10% Rationale: There is a chance for R1-R2 (Minor-Moderate) radio blackouts through 08 Mar. --- MBSE BBS v1.1.0 (Linux-x86_64) * Origin: Outpost BBS * Johnson City, TN (1:18/200) .